The Mini Wright Peak Flow Meter is the internationally recognized “Gold Standard” in peak flow measurement and exceeds the NAEPP Guidelines for Performance. Since asthma conditions can sometimes change slowly over the course of time, using your peak flow meter on a daily basis can become an important tool and may show changes in your breathing before you even feel them. The Mini Wright Peak Flow Meter measures the speed at which air is exhaled from your lungs, giving you a measurement of how well your airways are working. It has a clear, easy to read scale which measures from 30 to 400 liters per minute (low range) and from 60 – 850 liters per minute (standard range). It’s also light weight, compact, latex free and can be sterilized.The details on this website are a summary only, for full details please refer to the manufactures for full product details.